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re PR middle-end/29335 (transcendental functions with constant arguments should be resolved at compile-time) 

PR middle-end/29335
	* builtins.c (do_mpfr_sincos): New.
	(fold_builtin_1): Use it to fold builtin sincos.

testsuite:
	* gcc.dg/torture/builtin-math-3.c: Fix semicolons.
	(TESTIT_2P, TESTIT_2P_R): New macros.  Test sincos.

From-SVN: r118409
This commit is contained in:
Kaveh R. Ghazi 2006-11-02 03:20:49 +00:00 committed by Kaveh Ghazi
parent 1d07712df0
commit b68bcfff54
4 changed files with 133 additions and 14 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2006-11-01 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
PR middle-end/29335
* builtins.c (do_mpfr_sincos): New.
(fold_builtin_1): Use it to fold builtin sincos.
2006-11-01 Roger Sayle <roger@eyesopen.com>
* config/darwin.h (CPP_SPEC): Handle -pthread, transforming

62
gcc/builtins.c
View File

@ -207,6 +207,7 @@ static tree do_mpfr_arg1 (tree, tree, int (*)(mpfr_ptr, mpfr_srcptr, mp_rnd_t),
const REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *, bool);
static tree do_mpfr_arg2 (tree, tree, tree,
int (*)(mpfr_ptr, mpfr_srcptr, mpfr_srcptr, mp_rnd_t));
static tree do_mpfr_sincos (tree, tree, tree);
/* Return true if NODE should be considered for inline expansion regardless
of the optimization level. This means whenever a function is invoked with
@ -9184,6 +9185,12 @@ fold_builtin_1 (tree fndecl, tree arglist, bool ignore)
CASE_FLT_FN (BUILT_IN_TAN):
return fold_builtin_tan (arglist, type);
CASE_FLT_FN (BUILT_IN_SINCOS):
if (validate_arglist (arglist, REAL_TYPE, POINTER_TYPE, POINTER_TYPE, VOID_TYPE))
return do_mpfr_sincos (TREE_VALUE (arglist), TREE_VALUE (TREE_CHAIN (arglist)),
TREE_VALUE (TREE_CHAIN (TREE_CHAIN (arglist))));
break;
CASE_FLT_FN (BUILT_IN_SINH):
if (validate_arglist (arglist, REAL_TYPE, VOID_TYPE))
return do_mpfr_arg1 (TREE_VALUE (arglist), type, mpfr_sinh,
@ -11594,3 +11601,58 @@ do_mpfr_arg2 (tree arg1, tree arg2, tree type,
return result;
}
/* If argument ARG is a REAL_CST, call mpfr_sin_cos() on it and set
the pointers *(ARG_SINP) and *(ARG_COSP) to the resulting values.
The type is taken from the type of ARG and is used for setting the
precision of the calculation and results. */
static tree
do_mpfr_sincos (tree arg, tree arg_sinp, tree arg_cosp)
{
tree result = NULL_TREE;
STRIP_NOPS (arg);
if (TREE_CODE (arg) == REAL_CST && ! TREE_CONSTANT_OVERFLOW (arg))
{
const REAL_VALUE_TYPE *const ra = &TREE_REAL_CST (arg);
if (!real_isnan (ra) && !real_isinf (ra))
{
tree const type = TREE_TYPE (arg);
const int prec = REAL_MODE_FORMAT (TYPE_MODE (type))->p;
tree result_s, result_c;
int inexact;
mpfr_t m, ms, mc;
mpfr_inits2 (prec, m, ms, mc, NULL);
mpfr_from_real (m, ra);
mpfr_clear_flags();
inexact = mpfr_sin_cos (ms, mc, m, GMP_RNDN);
result_s = do_mpfr_ckconv (ms, type, inexact);
result_c = do_mpfr_ckconv (mc, type, inexact);
mpfr_clears (m, ms, mc, NULL);
if (result_s && result_c)
{
/* Dereference the sin/cos pointer arguments. */
arg_sinp = build_fold_indirect_ref (arg_sinp);
arg_cosp = build_fold_indirect_ref (arg_cosp);
/* Proceed if valid pointer type were passed in. */
if (TYPE_MAIN_VARIANT (TREE_TYPE (arg_sinp)) == TYPE_MAIN_VARIANT (type)
&& TYPE_MAIN_VARIANT (TREE_TYPE (arg_cosp)) == TYPE_MAIN_VARIANT (type))
{
/* Set the values. */
result_s = fold_build2 (MODIFY_EXPR, type, arg_sinp, result_s);
TREE_SIDE_EFFECTS (result_s) = 1;
result_c = fold_build2 (MODIFY_EXPR, type, arg_cosp, result_c);
TREE_SIDE_EFFECTS (result_c) = 1;
/* Combine the assignments into a compound expr. */
result = non_lvalue (fold_build2 (COMPOUND_EXPR, type,
result_s, result_c));
}
}
}
}
return result;
}

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2006-11-01 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* gcc.dg/torture/builtin-math-3.c: Fix semicolons.
(TESTIT_2P, TESTIT_2P_R): New macros. Test sincos.
2006-11-01 Adam Nemet <anemet@caviumnetworks.com>
* gcc.dg/fold-mod-1.c: Match the leading 0x for the

74
gcc/testsuite/gcc.dg/torture/builtin-math-3.c
View File

@ -21,7 +21,7 @@ extern void link_error(int);
link_error(__LINE__); \
if (__builtin_##FUNC##l(ARG##L) != RES##L) \
link_error(__LINE__); \
} while (0);
} while (0)
/* Range test, check that (LOW) < FUNC(ARG) < (HI). */
#define TESTIT_R(FUNC,ARG,LOW,HI) do { \
@ -31,7 +31,7 @@ extern void link_error(int);
link_error(__LINE__); \
if (__builtin_##FUNC##l(ARG) <= (LOW) || __builtin_##FUNC##l(ARG) >= (HI)) \
link_error(__LINE__); \
} while (0);
} while (0)
/* Test that FUNC(ARG1, ARG2) == (RES). */
#define TESTIT2(FUNC,ARG1,ARG2,RES) do { \
@ -41,7 +41,7 @@ extern void link_error(int);
link_error(__LINE__); \
if (__builtin_##FUNC##l(ARG1##L, ARG2##L) != RES##L) \
link_error(__LINE__); \
} while (0);
} while (0)
/* Range test, check that (LOW) < FUNC(ARG1,ARG2) < (HI). */
#define TESTIT2_R(FUNC,ARG1,ARG2,LOW,HI) do { \
@ -54,10 +54,47 @@ extern void link_error(int);
if (__builtin_##FUNC##l(ARG1, ARG2) <= (LOW) \
|| __builtin_##FUNC##l(ARG1, ARG2) >= (HI)) \
link_error(__LINE__); \
} while (0);
} while (0)
/* Test that for FUNC(ARG, &ARG_S, &ARG_C);
assert (ARG_S == RES_S && ARG_C == RES_C);. */
#define TESTIT_2P(FUNC,ARG,ARG_S,ARG_C,RES_S,RES_C) do { \
__builtin_##FUNC##f(ARG##F, &ARG_S##f, &ARG_C##f); \
if (ARG_S##f != (RES_S##F) || ARG_C##f != (RES_C##F)) \
link_error(__LINE__); \
__builtin_##FUNC(ARG, &ARG_S, &ARG_C); \
if (ARG_S != (RES_S) || ARG_C != (RES_C)) \
link_error(__LINE__); \
__builtin_##FUNC##l(ARG##L, &ARG_S##l, &ARG_C##l); \
if (ARG_S##l != (RES_S##L) || ARG_C##l != (RES_C##L)) \
link_error(__LINE__); \
} while (0)
/* Test that for FUNC(ARG, &ARG_S, &ARG_C);
assert (LOW_S < ARG_S < HI_S && LOW_C < ARG_C < HI_C);. */
#define TESTIT_2P_R(FUNC,ARG,ARG_S,ARG_C,LOW_S,HI_S,LOW_C,HI_C) do { \
__builtin_##FUNC##f(ARG##F, &ARG_S##f, &ARG_C##f); \
if (ARG_S##f <= (LOW_S##F) || ARG_S##f >= (HI_S##F) \
|| ARG_C##f <= (LOW_C##F) || ARG_C##f >= (HI_C##F)) \
link_error(__LINE__); \
__builtin_##FUNC(ARG, &ARG_S, &ARG_C); \
if (ARG_S <= (LOW_S) || ARG_S >= (HI_S) \
|| ARG_C <= (LOW_C) || ARG_C >= (HI_C)) \
link_error(__LINE__); \
__builtin_##FUNC##l(ARG##L, &ARG_S##l, &ARG_C##l); \
if (ARG_S##l <= (LOW_S##L) || ARG_S##l >= (HI_S##L) \
|| ARG_C##l <= (LOW_C##L) || ARG_C##l >= (HI_C##L)) \
link_error(__LINE__); \
} while (0)
int main (void)
{
#ifdef __OPTIMIZE__
float sf, cf;
double s, c;
long double sl, cl;
#endif
TESTIT_R (asin, -1.0, -3.15/2.0, -3.14/2.0); /* asin(-1) == -pi/2 */
TESTIT (asin, 0.0, 0.0); /* asin(0) == 0 */
TESTIT (asin, -0.0, -0.0); /* asin(-0) == -0 */
@ -101,6 +138,15 @@ int main (void)
TESTIT (tan, -0.0, -0.0); /* tan(-0) == -0 */
TESTIT_R (tan, 1.0, 1.55, 1.56); /* tan(1) == 1.557... */
#ifdef __OPTIMIZE__
/* These tests rely on propagating the variables s and c, which
happens only when optimization is turned on. */
TESTIT_2P_R (sincos, -1.0, s, c, -0.85, -0.84, 0.54, 0.55); /* (s==-0.841..., c==0.5403...) */
TESTIT_2P (sincos, 0.0, s, c, 0.0, 1.0); /* (s==0, c==1) */
TESTIT_2P (sincos, -0.0, s, c, -0.0, 1.0); /* (s==-0, c==1) */
TESTIT_2P_R (sincos, 1.0, s, c, 0.84, 0.85, 0.54, 0.55); /* (s==0.841..., c==0.5403...) */
#endif
TESTIT_R (sinh, -1.0, -1.18, -1.17); /* sinh(-1) == -1.175... */
TESTIT (sinh, 0.0, 0.0); /* sinh(0) == 0 */
TESTIT (sinh, -0.0, -0.0); /* sinh(-0) == -0 */
@ -207,16 +253,16 @@ int main (void)
TESTIT2 (hypot, -3.0, -4.0, 5.0); /* hypot(-3,-4) == 5 */
TESTIT2_R (hypot, 4.0, 5.0, 6.40, 6.41); /* hypot(4,5) == 6.403... */
TESTIT2 (atan2, 0.0, 0.0, 0.0) /* atan2(0,0) == 0 */
TESTIT2 (atan2, -0.0, 0.0, -0.0) /* atan2(-0,0) == -0 */
TESTIT2_R (atan2, 0.0, -0.0, 3.14, 3.15) /* atan2(0,-0) == pi */
TESTIT2_R (atan2, -0.0, -0.0, -3.15, -3.14) /* atan2(-0,-0) == -pi */
TESTIT2_R (atan2, 0.0, -1.0, 3.14, 3.15) /* atan2(0,-1) == pi */
TESTIT2_R (atan2, -0.0, -1.0, -3.15, -3.14) /* atan2(-0,-1) == -pi */
TESTIT2 (atan2, 0.0, 1.0, 0.0) /* atan2(0,1) == 0 */
TESTIT2 (atan2, -0.0, 1.0, -0.0) /* atan2(-0,1) == -0 */
TESTIT2_R (atan2, -1.0, 0.0, -1.58, -1.57) /* atan2(-1,0) == -pi/2 */
TESTIT2_R (atan2, 1.0, 0.0, 1.57, 1.58) /* atan2(1,0) == pi/2 */
TESTIT2 (atan2, 0.0, 0.0, 0.0); /* atan2(0,0) == 0 */
TESTIT2 (atan2, -0.0, 0.0, -0.0); /* atan2(-0,0) == -0 */
TESTIT2_R (atan2, 0.0, -0.0, 3.14, 3.15); /* atan2(0,-0) == pi */
TESTIT2_R (atan2, -0.0, -0.0, -3.15, -3.14); /* atan2(-0,-0) == -pi */
TESTIT2_R (atan2, 0.0, -1.0, 3.14, 3.15); /* atan2(0,-1) == pi */
TESTIT2_R (atan2, -0.0, -1.0, -3.15, -3.14); /* atan2(-0,-1) == -pi */
TESTIT2 (atan2, 0.0, 1.0, 0.0); /* atan2(0,1) == 0 */
TESTIT2 (atan2, -0.0, 1.0, -0.0); /* atan2(-0,1) == -0 */
TESTIT2_R (atan2, -1.0, 0.0, -1.58, -1.57); /* atan2(-1,0) == -pi/2 */
TESTIT2_R (atan2, 1.0, 0.0, 1.57, 1.58); /* atan2(1,0) == pi/2 */
return 0;
}